<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style type="text/css">
        /* 重置a标签属性 */
        a {
          text-decoration: none;
          font-size: 25px;
        }
        a:hover {
          text-decoration: none;
          transition: all 0.5s ease 0s;
          color: #0B7DF2;
        }
        a:focus {
          outline: none;
          text-decoration: none;
          -moz-outline: none;
        }

        .b-oa-title {
            position: relative;
            border-bottom: none
        }

        .b-oa-title::before {
            content: "";
            position: absolute;
            width: 100%;
            height: 2px;
            bottom: 0;
            left: 0;
            background-color: #0B7DF2;
            visibility: hidden;
            -webkit-transform: scaleX(0);
            -moz-transform: scaleX(0);
            -ms-transform: scaleX(0);
            -o-transform: scaleX(0);
            transform: scaleX(0);
            transition-duration: .2s;
            transition-timing-function: ease-in-out;
            transition-delay: 0s
        }

        .b-oa-title:hover::before {
            visibility: visible;
            -webkit-transform: scaleX(1);
            -moz-transform: scaleX(1);
            -ms-transform: scaleX(1);
            -o-transform: scaleX(1);
            transform: scaleX(1)
        }


    </style>
</head>
    <!-- <frameset rows="20%,*">
        <frame src='http://www.baidu.com'></frame>
    </frameset> -->
<body>
    <a href="#" class="b-oa-title">测试测试测试测试测试测试测试测试</a>
    <hr>
    <img src="http://tool.lu/netcard/">

    <iframe src='http://g.163.com/r?site=netease&affiliate=news&cat=homepage&type=logo300x250&location=3' frameborder=0  scrolling='no'></iframe>
</body>
</html>